Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor, also simply referred to as an electrolytic capacitor, is a capacitor constructed from a series of aluminum foil sheets layered with oxide. The oxide allows a large reverse biased voltage to be placed on the capacitors without breaking down due to the oxide protecting the metal. They are used in DC power supply filter applications, audio circuits, and RF circuits.

108LBA200M2DE Application Field and Working Principle

The 108LBA200M2DE capacitors are miniature surface mount aluminum electrolytic capacitors with a voltage rating of 64V DC and a capacitance of 33 μF. They offer a long life span of 2000 to 3000 hours. They are suitable for use in DC-DC converters, filter circuits, switching power supplies, and amplifier filter circuits in the area of computer, office automation and audio-video electronics.

An aluminum electrolytic capacitor works on the principle of electrolytic conduction. This is when an electrical potential causes the oxide layer on the aluminum plates to break down and form a conductive electrolyte. The electrolyte becomes an electric current that passes through the di-electrical material between the two plates and creates a charge. The charge is stored in the capacitor until needed.

To work properly, it is important to match the capacitor voltage rating with the application. If the capacitor voltage rating is too low, the capacitor will fail and possibly cause damage to the circuit. It is also important to select the right type of capacitor for the application. For example, an electrolyte capacitor should have a higher capacitance than a ceramic capacitor, if it is going to be used for higher frequency applications.

It is important to be aware of the limitations and operational parameters of each type of capacitor before selecting one for use in a circuit. For the 108LBA200M2DE aluminum electrolytic capacitors, it is important to note that the operating temperature range should be from -40°C to +105°C. Exceeding the temperature range may cause catastrophic failure of the capacitors.

In conclusion, the 108LBA200M2DE are miniature surface mount aluminum electrolytic capacitors that offer a long life span and are suitable for DC-DC converters, filter circuits, switching power supplies, and amplifier filter circuits in the area of computer, office automation and audio-video electronics. When selecting the right type of capacitors, it is important to match the voltage rating and observe the operating temperature range in order to ensure safe and reliable operation.